Table 3. Multivariate Cox regression models for the progression free survival analysis.

Models	Multivariate analysis
	Hazard Ratio (95% CI)	p
Model 1
SUVmax	1.12 (1.02-1.24)	0.019
Metastatic disease	5.83 (1.52-22.46)	0.01
Male gender	2.8 (0.82-9.59)	0.1
Model 2
SUVpeak	1.17 (0.99-1.38)	0.057
Metastatic disease	6.08 (1.56-23.67)	0.009
Male gender	3.19 (0.91-10.98)	0.07

CI: Confidence Interval; SUV: Standardized Uptake Value.